Alamar blue (AB) (10X ready to use solution) and 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide (MTT) were obtained from Sigma Aldrich, Ireland.
For cytotoxicity assays, an AB/MTT solution, 1.5mL of AB and 3 mL of MTT stock solution (2.5mg/mL, 25mg MTT/10mL PBS) in 30mL of fresh medium was prepared prior to the tests.